linux-kernel - [ 054/103] clocksource: dw

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Message-Id: <20130723220424.596626997@linuxfoundation.org>
Date:	Tue, 23 Jul 2013 15:26:05 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Baruch Siach <baruch@...s.co.il>,
	Daniel Lezcano <daniel.lezcano@...aro.org>
Subject: [ 054/103] clocksource: dw_apb: Fix error check

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Baruch Siach <baruch@...s.co.il>

commit 1a33bd2be705cbb3f57d7223b60baea441039307 upstream.

irq_of_parse_and_map() returns 0 on error, while the code checks for NO_IRQ.
This breaks on platforms that have NO_IRQ != 0.

Signed-off-by: Baruch Siach <baruch@...s.co.il>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/clocksource/dw_apb_timer_of.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/clocksource/dw_apb_timer_of.c
+++ b/drivers/clocksource/dw_apb_timer_of.c
@@ -44,7 +44,7 @@ static void add_clockevent(struct device
 	u32 irq, rate;
 
 	irq = irq_of_parse_and_map(event_timer, 0);
-	if (irq == NO_IRQ)
+	if (irq == 0)
 		panic("No IRQ for clock event timer");
 
 	timer_get_base_and_rate(event_timer, &iobase, &rate);


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